A) clonal deletion.
B) proliferation.
C) clonal selection.
D) differentiation.
E) hypersensitivity.
Correct Answer
verified
Multiple Choice
A) IgM only.
B) IgG only.
C) IgD only.
D) IgM and IgD.
E) IgD and IgE.
Correct Answer
verified
Multiple Choice
A) chickenpox infection followed by lifelong immunity.
B) chickenpox vaccine which triggers extended immunity to chickenpox.
C) giving a person immune serum globulins to chickenpox virus after exposure to the disease.
D) a fetus acquiring maternal IgG to the chickenpox virus across the placenta.
E) None of the choices is correct.
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) neutralization
B) opsonization
C) complement fixation
D) agglutination
E) anamnestic response
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) Only the first line of defense has been breached.Her second line of defense is fighting off this infection.
B) No lines of defense have yet been breached.Her intact barrier system is keeping her kidneys from becoming infected.
C) The second line of defense has been breached.Her lymphocytes are now being challenged by this infection.
D) There are no lines of defense for this sort of infection.
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) Fab
B) Fc
C) heavy chain
D) light chain
E) coli antigen in Marie's body?
Correct Answer
verified
Multiple Choice
A) secrete antibodies.
B) function in allergic reactions.
C) directly destroy target cells.
D) suppress immune reactions.
E) activate B cells and other T cells.
Correct Answer
verified
Multiple Choice
A) possess MHC antigens for recognizing self.
B) have membrane receptors that recognize foreign antigens.
C) gain tolerance to self by destruction of lymphocytes that could react against self.
D) develop into clones of B and T cells with extreme variations of specificity.
E) All of the choices are correct.
Correct Answer
verified
Multiple Choice
A) interleukin-1
B) interleukin-2
C) interleukin-12
D) antiserum
E) complement
Correct Answer
verified
Multiple Choice
A) chickenpox infection followed by lifelong immunity.
B) chickenpox vaccine which triggers extended immunity to chickenpox.
C) giving a person immune serum globulins to chickenpox virus after exposure to the disease.
D) a fetus acquiring maternal IgG to the chickenpox virus across the placenta.
E) None of the choices is correct.
Correct Answer
verified
Multiple Choice
A) neutralization
B) opsonization
C) complement fixation
D) agglutination
E) anamnestic response
Correct Answer
verified
Multiple Choice
A) include the Sabin polio vaccine.
B) include the measles,mumps,rubella vaccine (MMR) .
C) contain viable microbes that can multiply in the person.
D) require smaller doses and fewer boosters compared to inactivated vaccines.
E) All of the choices are correct.
Correct Answer
verified
Multiple Choice
A) helper T cells.
B) suppressor T cells.
C) cytotoxic T cells.
D) delayed hypersensitivity T cells.
E) natural killer (NK) cells.
Correct Answer
verified
Multiple Choice
A) has 10 antigen binding sites.
B) contains a central J chain.
C) is the first class synthesized by a plasma cell.
D) can serve as a B-cell receptor.
E) is a dimer.
Correct Answer
verified
Multiple Choice
A) leukocytes.
B) eosinophils.
C) epithelial cells.
D) red blood cells.
E) islet of Langerhans cells.
Correct Answer
verified
Multiple Choice
A) They consist of killed or inactivated cells.
B) They consist of live but weakened microbes.
C) It is possible to be allergic to vaccine preparations.
D) Autism only happens in rare instances of vaccination.
Correct Answer
verified
Multiple Choice
A) contain modified bacterial exotoxin molecules.
B) are always genetically engineered.
C) contain select antigenic components of a pathogen rather than whole cells or viruses.
D) confer passive immunity.
E) utilize DNA strands that will produce the antigen.
Correct Answer
verified
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